just noticed that from my last updates, when editing a project I can select only one category instead of the standard multiple options. Basically instead of a select option it is a radio button now.
I don't know if it's a Lay Theme bug or something else, had to ask to check what it might be...
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Hey matteo, yeah I changed this because of "project arrows". When you click an arrow to to go to the next project, the next project should be of the same category. But what if a project is a member multiple categories? Then it's not clear what the next project is.

I know this can be a backwards compatibility problem if you are using multiple category overviews and you want to show one project in two different category overviews. When you are editing a category overview however, only the members of this category are shown when you click "+Projects". Are you having this problem?

Why would you like to use multiple categories for one project?
Have a nice day

that is actually quite a huge backwards compatibility problem for us, we are using the theme for structuring radio events and shows in a quite complex structure, now basically the whole structure needs to be changed / re-thought or the theme changed (with a complete re-design) 0.0

So what you are saying is you would like the project arrows to navigate through all projects. Instead of just through the projects of the current category. Hm. Right now thats not possible but I could make an option for that one day!

I was wondering if the option to check multiple categories has been disabled again in recent updates: i have 1.7.1 installed but I only see radio buttons (and not checkboxes) either with project arrows disabled or enabled.

Specifically what I'd need to do would be to assign more than a category, occasionally, to a single project. What am I getting wrong?

I decided to only make it possible to have one category for a project.

The problem was that people wanted it to be possible that a "next project link" always goes to the next project of the same category. But if a project has multiple categories, that option wouldn't work.

You can still add any project of any category to a category overview (to the gridder when editing a category. Would that be enough for you or is something not working right because you cannot assign multiple categories? Do you want to assign multiple categories to have a better overview in the backend? Or is it something specific to the website (frontend)?